Asks for instructions, recommendations, etc., for coal fields, cathedrals, etc., he may visit as he travels to Glasgow via Durham.

Discusses the procuring and setting up of a telescope. Mentions the Paris observatory, E.J. Cooper, J. South, R.A. Cauchoix, W. Simms, E. Troughton, G. Dollond.

Concerns an electrical experiment.

Has been home and not had the opportunity to answer note of Sept. 2 delivered by W. Welsh. Operations in regard to transfer of or cooperation in electrical matters depends on Kew Committee. Mentions Col Sykes. Magnetic Instruments.

Reports on an Adams Prize Essay which he finds very unsatisfactory. A critique given, suggests that prize be deferred a year. Concerns astronomy. Mentions Prof. Miller.

Has referred to Baily's pamphlet. Discusses correstion to the motion of the node. Mentions Leplace, Bouvard, Seyffarth. With regard to connection of science and lit., mentions his study of place of Julius Caesar's landing in England.

Plans to go to Ipswich to inspect instrument casting, but will delay journey in event of visit by Mr. De la Marche.

Gives formula for interfering of light waves. "...even then they would seen as perfectly separate in a general view of space,..."

Comments on reliability of B.A.C. as regards star magnitude (possibly Baily's Astronomical Collection, 1827) and competence of B.A.C. editor [Francis] Baily. Mentions Argelander.

Details for treatment of magnetic observations in respect of the influence of disturbances. Discusses astronomical observations made at Maherstown.

Concerns questions submitted to Airy by Challis, for the Sheepshank Scholarship. Airy comments and makes suggestions. Concerns astronomy. Mentions Wilkinson.

Concerns magnets. Airy sending results of experiment involving the "direction given by a large magnet to a small one."

Discusses formation of earth's crust and composition of earth's interior, displacement of mass. Mentions Archdeacon Pratt.

Includes approximately 26 letters between Airy and the mine owners, C. W. and William Anderson. Airy gives instructions and draws diagrams both before and during the experiments, and there are subsequent letters seeking information needed for additional calculations. Included are news clippings, a pamphlet by Airy (Lecture on the Pendulum-Experiments at Harton Pit. London, 1855), and a piece of the wire used in the experiment.